CVE-2026-112256criticalCWE-349

CVE-2026-112256: critical vulnerability in OpenText Advanced Authentication Server

Logon bypass (trust of attacker-controlled completed-methods list)

Published 29 Oct 2026

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.2epss 0.2%

Acceptance of extraneous untrusted data with trusted data vulnerability in OpenText Advanced Authentication Server allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Advanced Authentication Server: from 6.4.0.0 through 6.4.3.8, from 6.5.0.0 through 6.5.0.10, and from 6.6.0.0 through 6.6.1.0.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:P/AU:Y/V:C/RE:M/U:Red

Affected products

OpenText · Advanced Authentication Server

Related CVEs — OpenText Advanced Authentication Server

In the same product, most dangerous first.

CVE-2026-112255LOWEndpoint credential minting (insecure default allow-list)EPSS 0.5%

References

https://docs.microfocus.com/doc/2582/26.3.1/security-improvements-662 https://docs.microfocus.com/doc/42/26.3.1/security-improvements-662 https://docs.microfocus.com/doc/42/6.4.3.9/security-improvements-6439 https://docs.microfocus.com/doc/42/6.5.0.11/security-improvements-65011